A dataset provided by the European Space Agency

Name: Investigating Time Lags In AGN In The Absence Of Reflection
Published: 2018-03-29T22:00:00Z

Proposal ID	078143
Title	Investigating Time Lags In AGN In The Absence Of Reflection
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0781430101
DOI	https://doi.org/10.5270/esa-o6um770
Principal Investigator, PI	Dr Abderahmen Zoghbi
Abstract	Relativistic reverberation has been observed in several AGN, where delayscomparable to the light crossing time very close to the black hole are seenbetween the Fe K line and the continuum. If this interpretation is correct,objects with no reflection should show no relativistic reverberation. Continuumlags however, are expected to be present regardless of reflection. The latterhave been attributed to either Comptonization, propagating fluctuations orscattering. Here, we request a 120 ks observation of PG 1448+273 that shows nosigns of reflection to directly test these predictions and constrain thecontinuum lags. The absence of reflection will allow us to isolate the continuumlags and understand their origin, providing unprecedented constraints on the X-ray source and the reflector.
Publications	Detection of a variable ultrafast outflow in the narrow-line Seyfert 1 galaxy PG 1448+273 \|Kosec P. Zoghbi A. et al. \| MNRAS \| 495-4769 \| 2020 \| 2020MNRAS.495.4769K \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.495.4769K Location and energetics of the ultra-fast outflow in PG 1448+273 \|Laurenti M. Luminari A. et al. \| A&A \| 645-118 \| 2021 \| 2021A&A...645A.118L \| http://ui.adsabs.harvard.edu/#abs/2021A&A...645A.118L Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z In-depth investigation of the physical origin of the soft X-ray excess in PG 1448+273 \|Ding Nan Gu Qiusheng et al. \| A&A \| 650-183 \| 2021 \| 2021A&A...650A.183D \| http://ui.adsabs.harvard.edu/#abs/2021A&A...650A.183D A Systematic Study of the Short-term X-Ray Variability of Seyfert Galaxies. I. Diversity of the X-Ray rms Spectra \|Hu Jingwei Jin Chichuan et al. \| ApJ \| 936-105 \| 2022 \| 2022ApJ...936..105H \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...936..105H Xu2011HESS: A large sample of highly accreting serendipitous AGN under the XMMu2011Newton microscope \|Laurenti M. Tombesi F. et al. \| AN \| 344-20230053 \| 2023 \| 2023AN....34430053L \| http://ui.adsabs.harvard.edu/#abs/2023AN....34430053L Rapid Variability of the Accretion Disk Wind in the Narrow-line Seyfert 1 PG 1448+273 \|Reeves J. N. Braito V. et al. \| ApJ \| 952-52 \| 2023 \| 2023ApJ...952...52R \| http://ui.adsabs.harvard.edu/#abs/2023ApJ...952...52R The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P Robust constraints on feebly interacting particles using XMM-Newton \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2017-01-24T05:52:43Z/2017-01-25T16:52:43Z
Version	17.56_20190403_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2018-03-29T22:00:00Z
Last Update	2025-01-27
Keywords	"light crossing time", "delays comparable", "continuum lags", "pg 1448", "investigating time lags", "relativistic reverberation", "xray source", "propagating fluctuations"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Abderahmen Zoghbi, 2018, 'Investigating Time Lags In AGN In The Absence Of Reflection', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-o6um770